81066082 has 8 divisors (see below), whose sum is σ = 121637376. Its totient is φ = 40520292.

The previous prime is 81066079. The next prime is 81066119. The reversal of 81066082 is 28066018.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8743 + ... + 15445.

It is an arithmetic number, because the mean of its divisors is an integer number (15204672).

Almost surely, 2^81066082 is an apocalyptic number.

81066082 is a deficient number, since it is larger than the sum of its proper divisors (40571294).

81066082 is a wasteful number, since it uses less digits than its factorization.

81066082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12752.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 81066082 is about 9003.6704737568. The cubic root of 81066082 is about 432.7925017464.

The spelling of 81066082 in words is "eighty-one million, sixty-six thousand, eighty-two".